CelTrek - a new int'l SIM - Page 5

GadgetKen · 18-04-2008, 22:27

No callback sim card is perfect. Have tried travelfone(out of business), UM, UM+, and Yackie. Pricing isn't always what they say on their website, callbacks sometimes fail, and the audio quality isn't always perfect. I'd say probably say 9 out of 10 calls work perfectly and there's something amiss with the tenth call.
That said, it's been much cheaper for me to make calls back to the USA from other countries using a callback sim, country or regional specific sim, or a satphone than using a hotel room phone (typically US$3.49/minute from non-US Caribbean on C&W CallUSA service which is still cheaper than AT&T Direct) or a postpaid mobile phone(US$1-US$3 depending on carrier, country and rate plan).

Bossman · 18-04-2008, 22:55

It would help if those that start charging as soon as the caller answers the callback indicate so though. I found out about maxroam the hard way. I assumed it was like most of the other sims that only charge for connected calls. So, I made a couple of test calls that I did not answer, from here (it's not cheap using it here in the US) when I received it. As soon as I checked my balance. I knew what was up.

I wonder what happens if I do nto answer the callback and it rolls to voicemail?

ckole · 30-04-2008, 15:25

I just returned from Europe and had a chance to use the Celtrek sim card. Generally it worked great. Call quality varied but that of course is up to the local network. Worked fine in Switzerland, Austria, and Croatia. One day the card did have issues in Dubrovnik. The signal died and it wouldn't re-register with a network. I tried auto and manual with no luck. Tried the card in multiple phones. Then it decided to come back. So not sure what that issue was. At the same time I was trying OneSim and OneRoam. Celtrek worked better for sure. Just thought I would throw my 2 cents in. If Celtrek could just find a way to give you a local SMS number as well it would be a huge improvement. Based on my tests I would recommend CelTrek.

With that said like other here I may still end up using a variety of cards including a local country sim if I plan on staying in one spot. I like the MyGlobalTalk solution to call forwarding so I don't have to update everyone on my contact list which sim I am using.

	(#1)
GadgetKen (Offline) Senior Member Prepaid Expert Posts: 342 Join Date: 14 Dec 2004 Location: Connecticut, USA Country:	18-04-2008, 22:27 No callback sim card is perfect. Have tried travelfone(out of business), UM, UM+, and Yackie. Pricing isn't always what they say on their website, callbacks sometimes fail, and the audio quality isn't always perfect. I'd say probably say 9 out of 10 calls work perfectly and there's something amiss with the tenth call. That said, it's been much cheaper for me to make calls back to the USA from other countries using a callback sim, country or regional specific sim, or a satphone than using a hotel room phone (typically US$3.49/minute from non-US Caribbean on C&W CallUSA service which is still cheaper than AT&T Direct) or a postpaid mobile phone(US$1-US$3 depending on carrier, country and rate plan). Phones/Wireless Devices: Doogee S90, Isatphone Pro, Amazon Kindle 3G, SkyRoam MiFi device, Karma MiFi device, AT&T Liberate MiFi device Sim Cards: T-Mobile (Mint), AT&T (Mifi device or Kindle), Koko Satphone: InMarSat Broadband US Wireless Data: AT&T postpaid, Sprint (Karma Mobility prepaid) Broadband International Data: SkyRoam VOIP: Skype

	(#2)
Bossman (Offline) Senior Member Prepaid Professionist Posts: 1,257 Join Date: 22 Apr 2005 Location: Chicago Country:	18-04-2008, 22:55 It would help if those that start charging as soon as the caller answers the callback indicate so though. I found out about maxroam the hard way. I assumed it was like most of the other sims that only charge for connected calls. So, I made a couple of test calls that I did not answer, from here (it's not cheap using it here in the US) when I received it. As soon as I checked my balance. I knew what was up. I wonder what happens if I do nto answer the callback and it rolls to voicemail? Phones: Xiaomi Mi Mix 2, Samsung Galaxy A50, ASUS zenfone 3, Sim cards: AT&T (Contract), 3 UK, Piranha Mobile

	(#3)
ckole (Offline) Junior Member Newbie Posts: 9 Join Date: 08 Apr 2008 Country:	30-04-2008, 15:25 I just returned from Europe and had a chance to use the Celtrek sim card. Generally it worked great. Call quality varied but that of course is up to the local network. Worked fine in Switzerland, Austria, and Croatia. One day the card did have issues in Dubrovnik. The signal died and it wouldn't re-register with a network. I tried auto and manual with no luck. Tried the card in multiple phones. Then it decided to come back. So not sure what that issue was. At the same time I was trying OneSim and OneRoam. Celtrek worked better for sure. Just thought I would throw my 2 cents in. If Celtrek could just find a way to give you a local SMS number as well it would be a huge improvement. Based on my tests I would recommend CelTrek. With that said like other here I may still end up using a variety of cards including a local country sim if I plan on staying in one spot. I like the MyGlobalTalk solution to call forwarding so I don't have to update everyone on my contact list which sim I am using.